
Installation guide
21
(6) Connecting the outdoor unit’s pipes
Process photo Work details
Things to obey
(installer)
Connecting
the outdoor
unit’s pipe.
Connect the pipe to the
outdoor unit and perform
heat preservation.
Check the heat
preservation of the
outdoor unit.
(7) Vacuum works
Process photo Work details
Things to obey
(installer)
Create
vacuum inside
the pipe.
Connect a vacuum pump
to the service valve of the
outdoor unit and create
vacuum all (Discharge,
Suction & Oil) line.
Check the vacuum
condition.
(8) Checking the vacuum gauge
Process photo Work details
Things to obey
(installer)
Check the
vacuum gauge
condition.
Continue the vacuum.
Check the normal vacuum
gauge.
8) Refrigerant charging
(1) Refrigerant calculation
Process photo Work details
Things to obey
(installer)
Accurately
calculate the
amount of
refrigerant.
-
Estimate the accurate
amount of refrigerant from
the diagram.
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